It's estimated more than half the sea turtles population has plastic in their stomachs.

Source: plastinography.org

Scientists have drawn a link between the amount of plastic a sea turtle consumes and its likelihood of death, with an estimated half of all sea turtles having plastic in their gut, according to CSIRO researchers.

The CSIRO said it was previously unclear how much plastic could kill sea turtles and whether they could ingest it without significant harm.

A study, published today in Scientific Reports, has found that once a turtle had 14 pieces of plastic in its gut, it had a 50 per cent likelihood that it would cause death.

Plastic in the stomach contents included the stickers found on pieces of fruit.

Plastic in the stomach contents included the stickers found on pieces of fruit.

Supplied: Qamar Schuyler

Principal research scientist Chris Wilcox at the CSIRO in Hobart said they estimated 52 per cent of sea turtles had plastic in their stomach.

"What we found was that when the turtle eats the first piece of plastic, it has about a 20 per cent chance of dying due to that one piece of plastic and as they eat more plastic, the chance that they die goes up," he said.

"We find hundreds of pieces of plastic in some turtles, everything from thin film to rope to fishing line, anything you see in your daily life we see in a turtle."

Dr Wilcox said turtles have a 20 per cent chance of dying after eating jut one piece of plastic.

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